Joseph e



`(Model.)

J. R-. PAYSON, Jr.

- GASTER.

No. 324,156. Patented Aug. 11,1885.

lUNITED STATES ATnNr rrrcn.

JOSEPH R. PAYSON, JR., OF CHICAGO, ILLINOIS, ASSIGNOR TO EDVARD FAYSON AND WVILLIAM F. MAIN, BOTH OF SAME PLACE.

oAsTER.

SPECIFICATION forming part of Letters Patent No. 324,156, dated August 11, 1885.

Application tiled March 11, 18S5. (Model.)

To all whom it may concern:

Be it known that I, JOSEPH R. PAYsoN, J r., a citizen of the United States, and residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful a plan sect-ion of a modified form of my in-4 vention taken on a line corresponding to the line z @of Fig. 2; Fig. 7, an elevation of the modified form of Wire yoke shown in Fig. 6 detached; Fig. 8, a -plan section, similar .to Fig. 6,0f another modified form of my invention; Fig. 9, a sectional view of the same on the line n v of Fig. 8; Fig. 10, a plan view of another modified form of yoke; Fig. 11, a plan View, similar to Fig. 6, of another' modied form of my invention; Fig. 12, asectional view of the same on the line/ww of Fig. 11; Fig.13, an elevation, partly in section, of another modified form of my invention; Fig. 14, a detail plan view ot the modified form of yoke employed in the construction-shown in Fig. 13; and Fig. 15, a sectional view of a modied form ofthe construction shown in Figs. 8 and 9.

Like letters refer to like parts in all the figures ofthe drawings.

My invention relates to casters for use 011 furniture, trucks, and like articles, its object being to produce a caster which is simple and inexpensive in its construction and effective in its operation; and to t-hese ends my invention consists in the construction of the' yoke l or saddle which connects the iioor-roller to other novel features, all as hereinafter described, and pointed out in the claims.

In Figs. 1 to 5, inclusive, of the drawings I have shown one form of my invention, in which A represents .the caster-plate, and B the stem or spindle passing through the same and into the material to which the caster is to be secured-such, for instance, as the leg of a chair. The caster-plate A is secured to the bottom ofthe chair-leg by means of screws passing through the holes a, formed in the plate for that purpose. The plate is also provided with a depending iiange, a', for the purposes hereinafter described. The lower end of the stem or spindle B is provided with an enlarged head, b, and the portion of the spindle between the said head and the hub c2 of the caster-plate A is formed into an enlargement, b', which provides a shoulder against which vthe caster-plate may rest. These parts, however, may be of anypreferred construction, as they form no essential part of my present invention.

C indicates the yoke or saddle which connects the iloor-roller D of the caster with the stem or spindle B. This yoke is constructed of Wire o1' any suitable materialiron,steel,or brass, although I prefer steel ou account of its superior strength-and is bent into shape by means of suitable formingtools, being con structed of a single continuous piece oi' wire. The central portion of the wire forms a loop, as shown at c, surrounding the spindle B'at the point b, between the hub al of the casterplate and the enlarged head b of the spindle.`

It desired, a washer, B, may be inserted between the head b and the loop e, forming an additional bearing for the loop, which turns freely around the spindle, thereby forming a swivel-connection between the yoke or saddle C and the spindle B. The ends of the wire whichforms the yoke extend divergingly ontward from the loop c, andare then bent downward, forming the horns c ot' the caster, the extremities of the wire being then bent horizontally, as shown in Fig. 1 ofthe drawings, to form an axis, c?, upon which theioor-roller D is mounted. A

Upon the horizontal portions c3 of the wire yoke,which areintermediate between t-he loop IOO c and the u prights c, I mount the anti-i`iiction rollers E. These rollers are constructed oi' any approved form-such as the section ol' a cylinder or ot' a cone-and revolve freely upon the portions c3 ot' the yoke, their upper portions bearing against the caster-plate A, between the hub u? and the flange a of which they travel,being guided in a circular path by means ot' the said flange and hub in an obvious manner, and receiving the greater portion of the weight of the article to which the caster is attached, thereby greatly reducing the friction at the swivel Ajoint between the yoke and the spindle.

It will be seen that the wire which forms the yoke or saddle C may be readily bent into the loop c around the spindle, and its ends then passed through the wheels or rollers E and sprung or bent into the position shown in the drawings to .torni the axis of the lloorrollcr D. rlhe wire may be somewflat ilattcncd along the portions c', which forni the horns ot' the caster, if desired, in order to strengthen it against the transverse strain to which it is subjected in use.

In Figs. G and 7 ol" the drawings I have shown a modiiied form ol' yoke. The general i'orm is identical with that already described; but instead of having the free ends ofthe wire at the point which composes the axis ci ol' the floor-roller, this axis is made from the central portion oi the wire, the ends being used to forni the loop c, whilethe extremities project somewhat beyond this loop, side by side, and are connected by means of a binding-piece, c", ol smaller wire. These ends may, however, be connected by any other suitable meanssuch as soldering or brazing.

In Figs. 8 and 9 of the drawings I have shown still another inodiiication inthe form of the yoke. In this instance the loop o, which surrounds the spindle B, is formed by means of a cast-metal ring` or hub, and the extremitics of the wire, which form the remaining portion of the yoke, are cast into this ring, or, more properly speaki ng, the ring is cast around the ends of the wire, thereby making the said ring and the wire which composes the remainder of the yoke practically in a single piece. The extremities ot' the wire may be passed vertically through the ring and headed down or riveted, as shown in Fig. 15, or attached to the ring in any other well-known manner.

In Fig. l0 ol" the drawings is shown a modification which differs but slightly from the form shown in Figs. 6 and 7, the yoke4 being constructed in the same manner as the yoke shown in those figures, except that instead of extending the extremities of the wire beyond the loop proper, c, these extremities abut against each other, as clearly shown in the iigure in question, and are secured by soldering or brazing.

In Figs. 1l and l2 of the drawings is shown a modification which differs but slightly from that shown in Figs. l to 5, and hereinbefore particularly described. In this instance the loop c, instead of being formed of only a single turn around the stein B, is formed with a double turn, as clearly shown in the two iigures in question, and even a greater number of turns than two may be employed if it be deemed necessary or advantageous.

In Figs. 18 and ILL I have shown my improved yoke used in connection with a modiiied form of Hoor-roller. In this construction the extremities c, which form the support for the licor-roller, are sprung into the ends of a sleeve, D', which is capable of rotation upon the said extremities, or fixed thereon, if desi red, and around which the Hoor-roller proper, D, revolves.

It is obvious that other forms of floor-roller may be used in conjunction' with my improved yoke, as the particular construction of the roller forms no portion of my invention.

Instead of a single roller two iloor-rollers may be used, one supported 011 each extremity of the wire which forms the yoke, the slight alteration in the construction necessary to effect this being suiiiciently obvious to require no particular description here.

I am aware that anti-friction rollers have heretofore been applied to furniturecasters in various manners, and therefore do not wish to be understood as claiming the same broadly. In the constructions of this nature of which I ani aware the various parts of the caster consist of a number of separate castings, which are costly in construction and in the labor required to properly iinish and assemble them, and complicated in their general nature,where as the construction which I have devised is extremely simple, cheap, and effective.

It is obvious that various modifications in the details of the construction hereinbefore described, and shown in the drawings, may be made without departing from the principle of my invention. The particular form of the yoke, the number of floor-rollers, and the construction ot' the spindle and caster-plate may be varied at pleasure, the essential l'eature of the invention being the construction of the pivot or support for the floor-roller, the body of the yoke or saddle, and the loop which forms the swivel-connection between the yoke and the spindle, ol' a single piece of Wire or other analogous material capable of being bent into proper form. I therefore do not wish to be understood as limiting myself strictly to the precise details of construction hercinbeforc set forth and shown in the drawings.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isn

1. The hereinbefore-described casteryoke, constructed of a single piece ofwire, and forining the caster-horns, the axle-bearings for antifrietion rollers, and the loop or swivel for the castersteni, substantially as and for the purposes specified.

2. rIhe combination, with the caster-stem and floor-roller, of a yoke or saddle connecting the two, and constructed of a single piece IOO IIO

single piece of Wire having a loop, c, to re- 1o ceive the stem B, and an axial portion, c2, to receive the Hoor-roller D, substantially as and for the purposes specified.

JOSEPH R. PAYSON, JR.

Witnesses:

GEO. A. PAYsoN, EDWARD PAYsoN. 

